EP 1219658 A4 20021113 - POLYOXYTETRAMETHYLENE GLYCOL AND PROCESS FOR PRODUCING THE SAME
Title (en)
POLYOXYTETRAMETHYLENE GLYCOL AND PROCESS FOR PRODUCING THE SAME
Title (de)
POLYOXYTETRAMETHYLENGLYKOL UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
POLYOXYTETRAMETHYLENE-GLYCOL ET PROCEDE DE PRODUCTION DE CE COMPOSE
Publication
Application
Priority
- JP 0005562 W 20000818
- JP 23301199 A 19990819
Abstract (en)
[origin: EP1219658A1] Disclosed is a high heat resistance and low viscosity polyoxytetramethylene glycol (PTMG) having the following characteristics (1) to (4): (1) a number average molecular weight of from 500 to 3000; (2) a molecular weight distribution of 1.8 or less in terms of the Mw/Mn ratio; (3) a content of high molecular weight PTMG molecules of from 2 to 5 % by weight, wherein the high molecular weight PTMG molecules are PTMG molecules having molecular weights which are at least six times as large as the number average molecular weight of all PTMG molecules; and (4) a heteropolyacid content of from 10 to 900 ppb by weight. <IMAGE>
IPC 1-7
IPC 8 full level
C08L 71/02 (2006.01); C08G 18/48 (2006.01); C08G 63/16 (2006.01); C08G 65/20 (2006.01); C08G 65/26 (2006.01); C08G 65/30 (2006.01); C08K 3/24 (2006.01)
CPC (source: EP KR US)
C08G 65/20 (2013.01 - EP US); C08G 65/2666 (2013.01 - EP US); C08G 65/30 (2013.01 - EP KR US)
Citation (search report)
- [XP] WO 9961507 A1 19991202 - ASAHI CHEMICAL IND [JP], et al
- [X] EP 0126471 A2 19841128 - ASAHI CHEMICAL IND [JP]
- [X] EP 0428003 A2 19910522 - BASF AG [DE]
- [X] EP 0503386 A1 19920916 - BASF AG [DE]
- [X] EP 0181621 A2 19860521 - ASAHI CHEMICAL IND [JP]
- [X] EP 0421268 A2 19910410 - BASF AG [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1219658 A1 20020703; EP 1219658 A4 20021113; EP 1219658 B1 20060111; AT E315601 T1 20060215; AU 6596900 A 20010319; BR 0013380 A 20020507; BR 0013380 B1 20101130; CA 2376397 A1 20010301; CA 2376397 C 20040914; CN 1164645 C 20040901; CN 1368990 A 20020911; DE 60025497 D1 20060406; DE 60025497 T2 20060921; ES 2251399 T3 20060501; JP 2005097325 A 20050414; JP 4194011 B2 20081210; KR 100497832 B1 20050629; KR 20020027549 A 20020413; MX PA02001443 A 20030721; TR 200200451 T2 20020923; TW 555784 B 20031001; US 6570041 B1 20030527; WO 0114455 A1 20010301
DOCDB simple family (application)
EP 00953515 A 20000818; AT 00953515 T 20000818; AU 6596900 A 20000818; BR 0013380 A 20000818; CA 2376397 A 20000818; CN 00811571 A 20000818; DE 60025497 T 20000818; ES 00953515 T 20000818; JP 0005562 W 20000818; JP 23301199 A 19990819; KR 20027002001 A 20020215; MX PA02001443 A 20000818; TR 200200451 T 20000818; TW 89116866 A 20000819; US 3161402 A 20020122